{"id":3843,"date":"2025-10-17T09:15:10","date_gmt":"2025-10-17T01:15:10","guid":{"rendered":"https:\/\/ballvalves.tw\/?post_type=product&p=3843"},"modified":"2026-07-16T09:24:09","modified_gmt":"2026-07-16T01:24:09","slug":"%d0%b1%d0%b5%d1%81%d1%88%d1%83%d0%bc%d0%bd%d1%8b%d0%b9-%d0%be%d0%b1%d1%80%d0%b0%d1%82%d0%bd%d1%8b%d0%b9-%d0%ba%d0%bb%d0%b0%d0%bf%d0%b0%d0%bd","status":"publish","type":"product","link":"https:\/\/ballvalves.tw\/ru\/product\/silent-check-valve\/","title":{"rendered":"304 \u0426\u0435\u043b\u044c\u043d\u044b\u0439 \u0431\u0435\u0441\u0448\u0443\u043c\u043d\u044b\u0439 \u043e\u0431\u0440\u0430\u0442\u043d\u044b\u0439 \u043a\u043b\u0430\u043f\u0430\u043d"},"content":{"rendered":"
\nPDF<\/span>1 \u0448\u0442. \u043e\u0431\u0440\u0430\u0442\u043d\u044b\u0439 \u043a\u043b\u0430\u043f\u0430\u043d<\/span>\u0421 \u043f\u0440\u0443\u0436\u0438\u043d\u043d\u044b\u043c \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c\u043e\u043c \u00b7 \u0422\u0430\u0431\u043b\u0438\u0446\u0430 \u0440\u0430\u0437\u043c\u0435\u0440\u043e\u0432<\/span>\u0421\u043a\u0430\u0447\u0430\u0442\u044c \u2193<\/span><\/a>\n<\/div>\n

\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u043f\u0440\u043e\u0434\u0443\u043a\u0442\u0430<\/h2>\n

The SC-1 is a one-piece silent check valve \u2014 also sold as a spring check valve or inline check valve. A stainless spring pushes the piston closed \u0434\u043e<\/i> flow fully reverses, so the valve shuts quietly instead of slamming: no water hammer, no shock load on pumps and pipes. The one-piece body is compact enough for tight spaces around pumps and manifolds.<\/p>\n

The body, piston and cap are cast 304 stainless steel (CF8), with a CF8M (cast 316) version made to order. Female PT threads are in stock, sizes 1\/2\u2033 to 2\u2033; NPT and PF can be made to order. Prefer a hinged-disc valve with lower pressure drop? See the stainless steel swing check valve<\/a>, \u0438\u043b\u0438 \u043f\u0440\u043e\u0441\u043c\u043e\u0442\u0440\u0435\u0442\u044c \u0432\u0441\u0435 \u043e\u0431\u0440\u0430\u0442\u043d\u044b\u0435 \u043a\u043b\u0430\u043f\u0430\u043d\u044b \u0438\u0437 \u043d\u0435\u0440\u0436\u0430\u0432\u0435\u044e\u0449\u0435\u0439 \u0441\u0442\u0430\u043b\u0438<\/a>.<\/p>\n

Silent (Spring) or Swing \u2014 Which Check Valve?<\/h2>\n\n\n\n\n\n\n\n
<\/th>\nSilent \/ spring check (this valve)<\/th>\nSwing check<\/th>\n<\/tr>\n<\/thead>\n
\u0417\u0430\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0435 \u0434\u0435\u0439\u0441\u0442\u0432\u0438\u0435<\/b><\/td>\nA spring closes the piston before flow fully reverses (non-slam)<\/td>\n\u041f\u043e\u0434 \u0434\u0435\u0439\u0441\u0442\u0432\u0438\u0435\u043c \u0441\u0438\u043b\u044b \u0442\u044f\u0436\u0435\u0441\u0442\u0438 \u0438 \u043e\u0431\u0440\u0430\u0442\u043d\u043e\u0433\u043e \u043f\u043e\u0442\u043e\u043a\u0430 \u0448\u0430\u0440\u043d\u0438\u0440\u043d\u044b\u0439 \u0434\u0438\u0441\u043a \u0437\u0430\u043a\u0440\u044b\u0432\u0430\u0435\u0442\u0441\u044f<\/td>\n<\/tr>\n
\u041f\u0430\u0434\u0435\u043d\u0438\u0435 \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u044f<\/b><\/td>\n\u0412\u044b\u0448\u0435 \u2014 \u043f\u0440\u0443\u0436\u0438\u043d\u0430 \u0440\u0430\u0441\u043f\u043e\u043b\u043e\u0436\u0435\u043d\u0430 \u0432 \u043f\u043e\u0442\u043e\u043a\u0435<\/td>\n\u041d\u0438\u0437\u043a\u0438\u0439 \u2014 \u0434\u0438\u0441\u043a \u043f\u0440\u043e\u0445\u043e\u0434\u0438\u0442 \u043c\u0438\u043c\u043e \u043e\u0442\u0432\u0435\u0440\u0441\u0442\u0438\u044f<\/td>\n<\/tr>\n
\u0418\u0434\u0435\u0430\u043b\u044c\u043d\u043e \u043f\u043e\u0434\u0445\u043e\u0434\u0438\u0442 \u0434\u043b\u044f<\/b><\/td>\n\u041d\u0430\u0433\u043d\u0435\u0442\u0430\u043d\u0438\u0435 \u043d\u0430\u0441\u043e\u0441\u0430 \u0438 \u0442\u0440\u0443\u0431\u043e\u043f\u0440\u043e\u0432\u043e\u0434\u044b, \u043f\u043e\u0434\u0432\u0435\u0440\u0436\u0435\u043d\u043d\u044b\u0435 \u0433\u0438\u0434\u0440\u0430\u0432\u043b\u0438\u0447\u0435\u0441\u043a\u0438\u043c \u0443\u0434\u0430\u0440\u0430\u043c<\/td>\n\u041e\u0431\u0449\u0438\u0435 \u0442\u0440\u0443\u0431\u043e\u043f\u0440\u043e\u0432\u043e\u0434\u044b \u0434\u043b\u044f \u0432\u043e\u0434\u044b, \u043d\u0435\u0444\u0442\u0438 \u0438 \u0433\u0430\u0437\u0430, \u0433\u0434\u0435 \u0432\u0430\u0436\u0435\u043d \u043d\u0438\u0437\u043a\u0438\u0439 \u043f\u0435\u0440\u0435\u043f\u0430\u0434 \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u044f<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u041e\u0441\u043d\u043e\u0432\u043d\u044b\u0435 \u0442\u0435\u0445\u043d\u0438\u0447\u0435\u0441\u043a\u0438\u0435 \u0445\u0430\u0440\u0430\u043a\u0442\u0435\u0440\u0438\u0441\u0442\u0438\u043a\u0438<\/h2>\n\n\n\n\n\n\n\n\n\n
\u0422\u0438\u043f<\/b><\/td>\nSilent check valve \u2014 one-piece, spring loaded (inline \/ spring check valve)<\/td>\n<\/tr>\n
\u041c\u043e\u0434\u0435\u043b\u044c<\/b><\/td>\nSC-1<\/td>\n<\/tr>\n
\u0414\u0438\u0430\u043f\u0430\u0437\u043e\u043d \u0440\u0430\u0437\u043c\u0435\u0440\u043e\u0432<\/b><\/td>\n1\/2\u2033 \u2013 2\u2033<\/td>\n<\/tr>\n
Body, piston & cap<\/b><\/td>\nCF8 \u2014 the cast form of 304 stainless steel \u2014 in stock; CF8M (cast 316) made to order<\/td>\n<\/tr>\n
Spring<\/b><\/td>\nSS304 (SS316 on the 316 version)<\/td>\n<\/tr>\n
\u0417\u0430\u0432\u0435\u0440\u0448\u0435\u043d\u0438\u0435 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u044f<\/b><\/td>\nFemale PT thread \u2014 in stock; NPT and PF made to order<\/td>\n<\/tr>\n
\u0421\u0442\u0440\u043e\u0438\u0442\u0435\u043b\u044c\u0441\u0442\u0432\u043e<\/b><\/td>\nOne-piece body, compact face-to-face<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u041c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u044b<\/h2>\n

Four parts, matching the numbered circles \u2460\u2013\u2463 in the drawing below. Materials shown for the 304 version in stock; the made-to-order 316 version uses CF8M castings and an SS316 spring.<\/p>\n\n\n\n\n\n\n\n\n
\u041d\u0435\u0442.<\/th>\n\u0427\u0430\u0441\u0442\u044c<\/th>\n\u041c\u0430\u0442\u0435\u0440\u0438\u0430\u043b<\/th>\n<\/tr>\n<\/thead>\n
1<\/td>\n\u0422\u0435\u043b\u043e<\/b><\/td>\nCF8 (CF8M to order)<\/td>\n<\/tr>\n
2<\/td>\nPiston<\/b><\/td>\nCF8 (CF8M to order)<\/td>\n<\/tr>\n
3<\/td>\nSpring<\/b><\/td>\nSS304 (SS316 to order)<\/td>\n<\/tr>\n
4<\/td>\n\u041a\u0435\u043f\u043a\u0430<\/b><\/td>\nCF8 (CF8M to order)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u0420\u0430\u0437\u043c\u0435\u0440\u044b (\u043c\u043c)<\/h2>\n
\n\"One-piece
B, C and D in the drawing match the columns below; A is the threaded bore. Numbers \u2460\u2013\u2463 are the parts in the materials table above. Unit: mm.<\/figcaption><\/figure>\n

Female PT threads in stock; NPT and PF made to order. Full drawing in the 1PC Check Valve dimension sheet (PDF)<\/a>.<\/p>\n\n\n\n\n\n\n\n\n\n\n
\u0420\u0430\u0437\u043c\u0435\u0440<\/th>\nB<\/th>\nC<\/th>\nD<\/th>\n<\/tr>\n<\/thead>\n
1\/2\u2033<\/b><\/td>\n\u00d825<\/td>\n56<\/td>\n\u00d827<\/td>\n<\/tr>\n
3\/4\u2033<\/b><\/td>\n\u00d831.9<\/td>\n62.4<\/td>\n\u00d833.9<\/td>\n<\/tr>\n
1\u2033<\/b><\/td>\n\u00d838<\/td>\n71.5<\/td>\n\u00d839.2<\/td>\n<\/tr>\n
1-1\/4\u2033<\/b><\/td>\n\u00d848.5<\/td>\n80<\/td>\n\u00d850.5<\/td>\n<\/tr>\n
1-1\/2\u2033<\/b><\/td>\n\u00d855<\/td>\n92<\/td>\n\u00d857.5<\/td>\n<\/tr>\n
2\u2033<\/b><\/td>\n\u00d867<\/td>\n102<\/td>\n\u00d870<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u041e\u0431\u043b\u0430\u0441\u0442\u0438 \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u044f \u0438 \u043c\u0435\u0441\u0442\u043e\u043f\u043e\u043b\u043e\u0436\u0435\u043d\u0438\u044f<\/h2>\n